Prior Art
[0001] The background of the present invention includes US Patent # 5925103, Internet Access
Device, which describes an improved Internet access system, vastly different from
embodiments of the present invention. Other prior art would include palm top computers,
hand-held computers and cellular telephones that have limited processing power due
to design restrictions. Thus, these computers are much slower for accessing the Internet
and World Wide Web.
[0002] Methods and devices to enable web browsing on a portable device are discussed in
BARTLETT J F: "EXPERIENCE WITH A WIRELESS WORLD WIDE WEB CLIENT", DIGEST OF PAPERS
OF THE COMPUTER SOCIETY COMPUTER CONFERENCE (SPRING) COMPCON. TECHNOLOGIES FOR THE
INFORMATION SUPERHIGHWAY, SAN FRANSISCO, MAR. 5-9, 1995, LOS ALAMITOS, IEEE COMP,
SOC. PRESS, US. vol. CONF. 40, 5 March 1995 (1995-03-05), pages 154-157, XP000545425,
ISBN: 0-7803-2657-1.
Summary
[0003] Embodiments of the present invention seek to enhance a server's processing speed,
data transfer and retrieval to and from portable devices, with the aid of specialised
embedded software in the server. The result is a cost effective Internet access solution.
[0004] According to one aspect of the present invention, there is provided a method implemented
on a portable device as defined in claim 1 hereinafter.
[0005] According to another aspect of the present invention, there is a provided a computer
readable storage medium as defined in claim 6 hereinafter.
[0006] According to a further aspect of the present invention, there is provided a method
implemented on a server system as defined in claim 9 hereinafter.
[0007] Embodiments of the present invention comprise a portable device, similar to a combination
of a cellular telephone and palm top computer that can access the Internet and World
Wide Web.
[0008] Embodiments of the present invention comprise a portable device that comprises a
modem that connects to a cellular telephone. Thus, the device has a wireless connection
to the Internet. A host computer, which may also be a Web server connects directly
to the Internet. The host computer comprises multiple software programs, for example
a Browser Translator, which translates HTML images into black and white bit map or
raster images. The compressed bit map or raster images are sent to the portable device,
and the device decompresses the images. Thus, the user views a bit map image of a
Web page.
[0009] The portable device comprises methods for pointing and clicking on text and images
representing links to other Web pages. Clicking events are sent to the host computer
that performs the commands via a virtual browser. The host computer then sends the
required information to the portable device as a compressed image. The portable device
decompresses the image and the user views a new page.
[0010] Further embodiments of the present invention comprise a method of the user modifying
the sequence of downloading images to the device. A user familiar with the layout
of a Web page can scroll a specific area, before the information is downloaded, to
initiate downloading in that area prior to other areas of the Web page being downloaded.
The user can also click on an area of the displayable area of the device to initiate
downloading in that area, prior to other areas being downloaded.
[0011] Still further embodiments of the present invention comprise an internal memory in
the device whereby downloaded Web pages or images are stored, and the user is able
to access these pages by clicking on a "back" or "forward" button.
[0012] Other embodiments of the present invention comprise a method of data transfer from
the host computer to the device, whereby data is sent in multiple procedures.
[0013] Thus, the user is able to view a partial image of a Web page sooner, and is able
to realize the contents of the page and click on links sooner.
DETAILED DESCRIPTION OF THE DRAWINGS
[0014] The invention is described in more detail below with respect to an illustrative embodiment
shown in the accompanying drawings in which:
FIGURE 1 illustrates a block diagram of the host computer, the portable device with wireless
connection and the user.
FIGURE 2 illustrates portions of the image with respect to the displayable area.
FIGURE 3 illustrates sub-divisions of the image to be displayed.
FIGURE 4 illustrates the portable device, the direct server and the host server.
FIGURE 5 illustrates an enlarged view of the device and the image
FIGURE 6 illustrates an enlarged view of the device and the image and scroll bars
FIGURE 7 illustrates an enlarged view of the device and the image with an area to be clicked
FIGURE 8 shows the normal sequence of downloading
FIGURE 9 shows the altered sequence of downloading
FIGURE 10 displays the "back" and "forward" buttons
FIGURE 11 illustrates a sequence of downloading an image line by line
DETAILED DESCRIPTION OF EMBODIMENTS OF THE PRESENT INVENTION
[0015] The principal embodiment of the present invention aims to provide a device that allows
a user to access the Internet or the World Wide Web (WWW), which device is similar
to a palm top computer. It is a further aim of the present invention, to reduce the
cost of the device. It is a further aim of the present invention, is to increase the
speed of refreshing the screen when the user clicks on a link and commands another
page to be displayed.
[0016] Currently, existing palm top devices such as the Palm Pilot VII and Windows CE type
devices contain an operating system, and within the operating system a minibrowser
to interpret information received from the WWW or Internet and then display this information
on the screen. This requires a powerful microprocessor.
[0017] With reference to applications
09/496,172,
09/501,585,
09/504,809,
09/504,808 and
09/504,807, embodiments of the present invention seek to provide a method and system of storing
previously viewed pages on the device. Thus, a user is able to utilize a pointer to
select and press a "back" button or a "forward" button to view previously accessed
pages, and which pages are stored directly in the device. Embodiments of the invention
further seek to provide a method of enabling the user to scroll to a specific area
thereby initiating downloading in that area, or the user clicking on a specific area
to initiate the downloading.
[0018] The principal embodiment of the present invention is disclosed in Figure 1. A host
computer 1 is depicted that is connected to the Internet and may also be a Web server.
Running in the host computer, is a Web server program 2. When a remote user 3 requests
to view a Web page (or electronic message etc.) the Web server software receives HTML,
JAVA, etc. information from the World Wide Web and transmits this information to another
software, the Browser Translator 4. This software translates the information, (i.
e. the entire image comprising graphics and text) received in the form of HTML, Java,
etc. (information may be gathered from different sources) and translates it to a black
and white bit map or raster image. In another embodiment, the software translates
the information into a raster color
[0019] image. The image
5, as shown in
Figure 2, contains the information that would normally be displayed on a single Web page. The
translation program therefore, also acts as a virtual browser
6. As can be seen in
Figure 2, the image
5 to be displayed in a browser window
6 is usually larger than the displayable area of the browser window
6.
[0020] The image 5 is further divided into sections
7, 8, 9, and
10, as shown in
Figure 3. The image is divided after the bitmap or raster is created. The reason for the division
(as will be explained later) is for the purpose of display priority on the user's
display. The image
5 is then sent to another program
11 running on the host computer
1 (Fig. 1), which compresses the image using a loss-less compression method. The compression
method may be group 3 or group 4, or another method.
[0021] The programs
4 and
11 can have multiple instances running simultaneously on the host server for the purpose
of connecting to multiple users. The compressed image, after being processed by program
11, is sent to the user, using a protocol in which information may be broken down into
packets.
[0022] The information is received by a palm top device
12 that has the ability to display a monochrome image, in its display window
13. The information is decompressed and displayed in the order of priority such that
part of image
7, which substantially or completely covers the displayable area
13 (Fig. 2), of the palm device is decompressed and displayed first and then sequentially the
portions
8, 9, 10 of the image are decompressed and stored in an internal memory of the palm top device
to be displayed later when the user scrolls up, down, or sideways to these parts of
the image.
[0023] Figure 5 is an enlarged view of the displayable area
13 of the device
12 and the image
5. The host computer transmits the compressed image to the device via the user's cellular
telephone. The information is received by the device, which has the ability to display
a monochrome image, in its display window. In this embodiment, the virtual browser
window is of equal size to the displayable area of the device. The information received
by the device is decompressed and displayed in the order of priority, as shown numerically
in
Figure 5. The image is displayed such that part
D of image, which is decompressed and displayed first completely covers the displayable
area
13, of the device and then sequentially the other portions of the image are decompressed
and stored in an internal memory of the device to be displayed later when the user
scrolls up, down, or sideways to these parts of the image.
[0024] The principle embodiment of the present invention discloses a method for the user
to alter the predetermined sequence of downloading of a requested Web page or image.
The user can scroll to an area on the display of the device, thereby altering the
sequence of downloading such that the scrolled-to area will be downloaded first, followed
by the surrounding area, until the entire image has been transmitted to the device.
[0025] After having viewed a Web page multiple times, the user will be familiar with the
layout of the Web page. Therefore, the user knows an approximate location on the displayable
area of the device of essential information or links with which the user is most concerned,
[0026] For example,
Figure 6 illustrates numerically the predetermined sequence of downloading for a specific
Web page. The device
12 and displayable area
13 are shown. Thus, area
A is the first portion of the web page
5 to be transmitted to the device. However, the user is ultimately interested with
information located at area
B and accordingly knows that this information is accessible by clicking twice, with
the pointer, on conventional scroll bars
18 bordering the display, Thus, to obtain this information first, the user can scroll
until the appropriate area
B has been advanced. Thus, the sequence of downloading and to initiate downloading
in the scrolled-to area. The scroll bars enable the user to scroll faster than the
downloading process.
[0027] The device sends a message to the host computer conveying the location of the scrolled-to
area on the device. A program interprets the received message and provides a virtual
scrolling procedure to the same location in the virtual browser. The translator program,
in the virtual browser, subsequently begins translating the information in the scrolled-to
area into a bit map or raster image, which image is consequently compressed by the
compression program and then dispatched to the device where the required information
is displayed first.
[0028] Thus, the sequence of downloading is modified according to the needs or preferences
of the user. The user can scroll, horizontally or vertically, to any area of the image
to activate downloading in that area first. Furthermore, the surrounding areas of
the scrolled-to area will be subsequently downloaded because of the likelihood of
the user requiring this data sooner than information located on other areas of the
page. The entire page will be eventually downloaded, however the order of downloading
is modified.
[0029] In another embodiment of the present invention, while information is being downloaded
into the device, the user can click in a specific area on the displayable area of
the device, to modify the order of downloading such that the information located at
the clicked-on area will be downloaded first.
[0030] As explained in the previous embodiment, the user can scroll to a preferred area
to begin downloading that area first. However, with reference to Figure 7, the user
can use the pointer to click on a specific area of the displayable area 13 of the
device 12 to specify that this portion of the image is to be downloaded first.
[0031] For example, the user knows that essential links are located in area C of the displayable
area of the device 12. Thus, the user can use the pointer to click upon the appropriate
location
C in the displayable area
13. The device sends a message to the host computer conveying the location of the click
down event on the image of the device. A program interprets the message and provides
and the translator program subsequently begins translating the information from the
new location, into a bit map or raster image. The image is compressed by the compression
program and subsequently dispatched to the device where the required information is
displayed first.
[0032] Thus, the predetermined sequence of downloading is modified, according to the needs
or preferences of the user.
Figure 8 is an enlarged view and illustrates numerically a usual sequence of downloading leading
to the area
C. Figure 9 is an enlarged view of the clicked-on area
C of
Figure 7. Figure 9 further shows a potential sequence of downloading subsequent to the user clicking
on the specific area. The immediate surrounding areas of the clicked-on area will
be downloaded accordingly. The remaining parts of the page are transmitted, until
the entire page has been sent from the host server.
[0033] Thus, the user is able to establish a precise location where downloading is to be
activated first, according to the user's preferences.
[0034] A CPU resident in the palm top device therefore has the ability to decompress a bit
map or raster image that may be larger than the size of the display and allow the
user to traverse this bit map or raster image. The primary method of traversing the
image is through conventional scroll bars positioned at the-sides of the image.
[0035] The resident CPU on the palm top device has no ability to determine which parts part
or parts of the image, that is being displayed, represent links to other Web pages
etc. Thus, the translator program
4 (Fig. 1) translates the image in the virtual browser
6 such that the words that represent links on the page
5 (Fig. 2) are translated to be slightly bolder. The user may therefore consider text that is
bold to be links.
[0036] The palm top device provides the user with a pointing device. This pointing device
may be a touch screen or tracking ball, etc. The palm top device also allows the user
to click on specified areas. As soon as the user clicks on part of an image, the shape
of the pointer changes from an arrow to an hourglass. A message is sent to the host
computer, transmitting the location of the clicked down event. A program
14 interprets the message and provides a virtual click down in the virtual browser created
in the translator program
4. If the user has pressed in an area of the image that does not represent a link or
text box, a message is dispatched to the palm top device which immediately changes
the hourglass shape of the pointer back to an arrow (in the case of a touch screen,
from an hour glass to nothing). Further to this, if the user has clicked on a part
of the image which represents a link, a new Web page is extracted from the Internet
or WWW, translated by translator program
4 (Fig 1) into a bit map or raster, and compressed by compression program
11 and dispatched to the palm top device where a new page is displayed. Furthermore,
the image
5 is continuously being updated and translated and sent to the palm top device where
it is continuously being refreshed. This occurs once every few seconds.
[0037] In another embodiment of the present invention, the user may save and store the rasterized
Web pages in the memory of the device, and therefore be able to view offline the stored
rasterized pages, at a later time. The advantage of this embodiment is that the user
does not have to connect to the host server to view the saved Web pages.
[0038] In another embodiment of the present invention, reference is made to
Figure 10 where displayable area
13 of the device
12 is illustrated. "Back" button
20 and "forward" button
21 provide the user the means of viewing previously accessed or seen pages, with respect
to the user's currently displayed page. The user can utilize the pointing device,
to select and click upon the "back" button and "forward" button to view the previously
seen pages, which pages are stored in an internal memory in the device because the
pages were previously downloaded. Thus, as soon as the user clicks on the "back" button
the device displays the requested page immediately because the page is stored in the
device. Thus, retrieving previously seen pages is faster and more efficient for the
user.
[0039] The device also sends a message to the host computer that a click down event has
occurred on the display of the device. A program interprets the received message and
executes a virtual clicking or pressing of a "back" button in the virtual browser
and the page in the virtual browser is changed. Thus, the image on the display of
the device and the image of the virtual browser are logged onto identical pages. However,
the host server does not transmit the page again because the host server detects that
the page is currently displayed on the device. The device and the virtual browser
must always be on the same page in order for any command executed by the user on the
device, such as selecting a link, be executed properly in the virtual browser.
[0040] The same operation would occur if the user were to select and click upon the "forward"
button.
[0041] In another embodiment of the present invention, the host server sends the compressed
data to the device in a sequence of every second line of data, which sequence is repeated
until all of the compressed data has been sent.
[0042] Figure 11 illustrates numerically a conventional method of data transfer from the host computer
to the device
12. The compressed bit map or raster image is sent consecutively, line by line, until
the entire image has been sent to the device. The displayable area of the device has
a resolution of 320 x 240 pixels and the time to completely fill the displayable area
of the device with a portion of the image is approximately six seconds.
[0043] In the present embodiment, the data transfer from the host computer to the device
is such that the compressed data is sent by every second line for example, line 2,
line 4, line 6 etc. The procedure is then repeated with line 1, line 3, line 5 etc.
until the entire displayable area of the device is covered by a portion of the image.
Thus, the transfer of data is divided into two procedures, with each procedure taking
approximately three seconds. The total amount of time to fill the displayable area
remains six seconds.
[0044] The transmission of the compressed data by such a method enables the user to view
a partial image sooner, and which partial image may be enough information for the
user to discern what that portion of the image represents. Thus, the user may be able
to realize sooner the information that is represented or select and click a link,
in that portion of the image.
[0045] When the user clicks in a text box or in a box in the display area into which letters
or numbers must be input, the cursor first changes into an hourglass, and a message
is sent to the host server. The host server recognizes that the click down event has
occurred in the text box, and sends a message back to the palm top device to inform
the palm top device to pop-up a keyboard on part of the screen. The user then types,
using the pointer, the letters or words to be entered into the text box and presses
"enter" or "go". The keyboard then disappears and the cursor changes back to an hourglass
shape (in another embodiment, the keyboard could be replaced with a real keyboard
or with an area that recognizes users' handwriting). The information typed into the
text box is transmitted in a message to the host computer. The host computer enters
the information into a text box in the virtual browser.
[0046] The user sees, after a short pause, as the image is refreshed on the palm top device,
that the words, or letters or numbers have been entered into the text box. Further
to this, the host computer may also break up the image such that the portion that
has been changed, i.e. the text box area, is sent first.
[0047] In another embodiment of the present invention, images are only refreshed when as
event occurs such as a mouse down event on a link or in a text box.
[0048] In a further embodiment only those portions of the image that changes may be transmitted
from the host computer to the palm top device. Other images in the virtual browser
that are continuously changing, such as banner advertisements, may be the only other
images sent to the palm top computer as they change.
[0049] In the principal embodiment, the palm top device also contains a modem, which can
be linked to the user's mobile telephone
15 and information that is communicated between the palm top device and the host computer
is sent and received wirelessly through the mobile telephone.
[0050] Furthermore, the palm top device only contains enough memory to store the current
displayable page. When the user presses a back or forward button, a message is sent
to the host server, and the host server sends the reference page. The back and forward
buttons etc. may be hard wired into the palm top device, or may be part of the display
area.
[0051] Further to this, part of the image representing buttons (and other things) on the
virtual browser may be sent as part of the compressed image and buttons such as forward
and back may be treated the same way as links are handled as previously described.
[0052] In another embodiment, the palm top device comprises a modem that permits the device
to connect to a cellular telephone 15 in digital format.
[0053] In another embodiment, the connection to the cellular telephone 15 is made through
an analog modem connected to an ear jack of the cellular telephone.
[0054] In yet another embodiment of the present invention, the modem is replaced by an analog
modem that has the capability to be connected to a landline providing a standard 56kbps-type
connection.
[0055] Further embodiments may provide connections through ISDN, cable modems etc.
[0056] In a further embodiment, the palm top device may contain a large screen to be used
in a fashion similar to a home Internet appliance.
[0057] In a further embodiment, the image transferred between the host computer and the
remote device (previously the palm top device) may be a color image and the compression
method used may be of a Jpeg or other compression methods used for color images. A
gray scale image may also be used to reduce bandwidth or display costs.
[0058] In a further embodiment, the device includes no screen, but only outputs to be hooked
to a television screen or external monitor for display.
[0059] The remote device in the principal embodiment only has the ability to decompress
the image it receives; display the image it receives; allow the user to scroll through
the image; provide the user with a pointing device to point and click on the image;
send messages providing location of click down event; provide the user with a method
to input letters and numbers; send a message containing these letters and numbers.
[0060] The principal embodiment contains no other structure or intelligent information about
the image.
1. A method implemented on a portable device (12) to access remote documents, the method
comprising:
sending from the device (12) to a remote server (1) a request for a document, the
document including graphics and text;
receiving at the device (12) from the remote server (1) a first portion (7) of an
image (5) in a compressed format, the first portion (7) of the image (5) having been
rendered at the remote server (1) from the document including the graphics and the
text, the area of the image (5) larger than a displayable area (13) of the device
(12);
displaying the first portion (7) of the image (5) on the device (12)
receiving input at the device (12) indicating a user (3) of the device (12) is scrolling
the first portion (7) of the image (5);
sending a message to the remote server (1) indicating a scrolled to area of the image
(5); and
receiving at the device (12) from the remote server (1) a second portion (8, 9, 10)
of the image (5) in a compressed format, the second portion (8, 9, 10) of the image
(5) having been rendered at the remote server (1) from the document including the
graphics and the text; characterised in that the method further comprises:
subsequent to the receiving of the second portion (8, 9, 10) of the image (5) and
in response to the sending of the message, receiving at the device (12) additional
portions (8, 9, 10) of the image (5) that surround the second portion (8, 9, 10) of
the image (5).
2. The method of claim 1 wherein the document is an HTML web page.
3. The method of claim 1 wherein the scrolling is horizontal.
4. The method of claim 1 wherein the scrolling is vertical.
5. The method of claim 1 further comprising responding to a user click within a displayable
area (13) of the device (12) while the additional portions (8, 9, 10) are being received
by the device (12).
6. A computer readable storage medium including program code that when processed by a
processor of a portable device (12) causes a method to be performed by the portable
device (12) to access a remote document, the method comprising:
sending from the device (12) to a remote server (1) a request for a document, the
document including graphics and text;
receiving at the device (12) from the remote server (1) a first portion (7) of an
image (5) of the document in a compressed format, the first portion (7) of the image
(5) having been rendered at the remote server (1) from the document including the
graphics and the text, the area of the image (5) being larger than a displayable area
(13) of the device (12);
displaying the first portion (7) of the image (5) on the device (12);
receiving input at the device (12) indicating a user (3) of the device (12) is scrolling
the first portion (7) of the image (5);
sending a message to the remote server (1) indicating a scrolled to area of the image
(5);
receiving at the device (12) from the remote server (1) a second portion (8, 9, 10)
of the image (5) in a compressed format, the second portion (8, 9, 10) of the image
(5) having been rendered at the remote server (1) from the document including the
graphics and the text; and
subsequent to the receiving of the second portion (8, 9, 10) of the image (5) and
in response to the sending of the message, receiving at the device (12) additional
portions (8, 9, 10) of the image (5) that surround the second portion (8, 9, 10) of
the image (5).
7. The computer readable storage medium of claim 6 wherein the document is an HTML web
page and the scrolling is horizontal or vertical.
8. The computer readable storage medium of claim 6 wherein the compuer readable storage
medium includes further program code that when processed by the processor of the portable
device causes the method to be performed by the portable device to access a remote
document, the method further comprising responding to a user click within a displayable
area (13) of the device (12) while the additional portions (8, 9, 10) are being received
by the device (12).
9. A method implemented on a server system, comprising:
receiving from a remote portable device (12) a request for a document;
receiving the document, the document including graphics and text, rendering at least
a first portion of the document to create an image of the first portion (7) of the
document, compressing the image of the first portion (7) of the document and sending
the compressed image of the first portion (7) of the document to the remote portable
device (12);
receiving from the remote portable device (12) a message indicating a user (3) of
the remote portable device (12) has scrolled the image of the first portion of the
document and indicating a scrolled-to area of the document;
rendering at least a second portion of the document to create an image of the second
portion (8, 9, 10) of the document, the second portion of the document including the
scrolled-to area, compressing the image of the second portion (8, 9, 10) of the document
and sending the compressed image of the second portion (8, 9, 10) of the document
to the remote portable device (12); characterised in that the method further comprises:
subsequent to the sending of the second portion of the image (8, 9, 10) and in response
to the sending of the message, automatically generating additional compressed portions
of the image (8, 9, 10) that surround the second portion of the image (8, 9, 10) and
sending the additional compressed portions of the image (8, 9, 10) to the user (3).
10. The method of claim 9 wherein the sending of the additional compressed portions of
the image (8, 9, 10) corresponds to a change to a previously determined order of sending
compressed portions of the image (8, 9, 10) to the remote device (12).
1. Auf einer tragbaren Einrichtung (12) implementiertes Verfahren für den Zugriff auf
Remote-Dokumente, wobei das Verfahren Folgendes umfasst:
Senden, von der Einrichtung (12) an einen Remote-Server (1), einer Anforderung eines
Dokuments, wobei das Dokument Grafiken und Text enthält;
Empfangen an der Einrichtung (12), vom Remote-Server (1), eines ersten Teils (7) eines
Bildes (5) in einem komprimierten Format, wobei der erste Teil (7) des Bildes (5)
am Remote-Server (1) aus dem die Grafiken und den Text enthaltenden Dokument wiedergegeben
wurde, wobei der Bereich des Bildes (5) größer als ein darstellbarer Bereich (13)
der Einrichtung (12) ist;
Anzeigen des ersten Teils (7) des Bildes (5) auf der Einrichtung (12);
Empfangen von Input an der Einrichtung (12) und Anzeige dessen, dass ein Benutzer
(3) der Einrichtung (12) den ersten Teil (7) des Bildes (5) scrollt;
Senden einer Meldung an den Remote-Server (1) unter Anzeige eines angescrollten Bereichs
des Bildes (5); und
Empfangen an der Einrichtung (12), vom Remote-Server (1), eines zweiten Teils (8,
9, 10) des Bildes (5) in einem komprimierten Format, wobei der zweite Teil (8, 9,
10) des Bildes (5) am Remote-Server (1) aus dem die Grafiken und den Text beinhaltenden
Dokument wiedergegeben wurde; dadurch gekennzeichnet, dass das Verfahren ferner Folgendes umfasst:
nach dem Empfangen des zweiten Teils (8, 9, 10) des Bildes (5), und als Reaktion auf
das Senden der Meldung, Empfangen an der Einrichtung (12) von zusätzlichen Teilen
(8, 9, 10) des Bildes (5), die den zweiten Teil (8, 9, 10) des Bildes (5) umgeben.
2. Verfahren nach Anspruch 1, worin das Dokument eine HTML-Webseite ist.
3. Verfahren nach Anspruch 1, worin das Scrollen horizontal erfolgt.
4. Verfahren nach Anspruch 1, worin das Scrollen vertikal erfolgt.
5. Verfahren nach Anspruch 1, ferner umfassend das Reagieren auf einen Benutzerklick
innerhalb eines darstellbaren Bereichs (13) der Einrichtung (12), während die zusätzlichen
Teile (8, 9, 10) von der Einrichtung (12) empfangen werden.
6. Computerlesbares Speichermedium einschließlich Programmcode, der beim Verarbeiten
durch einen Prozessor einer tragbaren Einrichtung (12) bewirkt, dass von der tragbaren
Einrichtung (12) ein Verfahren für den Zugriff auf ein Remote-Dokument durchgeführt
wird, wobei das Verfahren Folgendes umfasst:
Senden, von der Einrichtung (12) an einen Remote-Server (1), einer Anforderung eines
Dokuments, wobei das Dokument Grafiken und Text enthält;
Empfangen an der Einrichtung (12), vom Remote-Server (1), eines ersten Teils (7) eines
Bildes (5) des Dokuments in einem komprimierten Format, wobei der erste Teil (7) des
Bildes (5) am Remote-Server (1) aus dem die Grafiken und den Text enthaltenden Dokument
wiedergegeben wurde, wobei der Bereich des Bildes (5) größer als ein darstellbarer
Bereich (13) der Einrichtung (12) ist;
Anzeigen des ersten Teils (7) des Bildes (5) auf der Einrichtung (12);
Empfangen von Input an der Einrichtung (12) und Anzeige dessen, dass ein Benutzer
(3) der Einrichtung (12) den ersten Teil (7) des Bildes (5) scrollt;
Senden einer Meldung an den Remote-Server (1) unter Anzeige eines angescrollten Bereichs
des Bildes (5);
Empfangen an der Einrichtung (12), vom Remote-Server (1), eines zweiten Teils (8,
9, 10) des Bildes (5) in einem komprimierten Format, wobei der zweite Teil (8, 9,
10) des Bildes (5) am Remote-Server (1) aus dem die Grafiken und den Text enthaltenden
Dokument wiedergegeben wurde; und
nach dem Empfangen des zweiten Teils (8, 9, 10) des Bildes (5), und als Reaktion auf
das Senden der Meldung, Empfangen an der Einrichtung (12) von zusätzlichen Teilen
(8, 9, 10) des Bildes (5), die den zweiten Teil (8, 9, 10) des Bildes (5) umgeben.
7. Computerlesbares Speichermedium nach Anspruch 6, worin das Dokument eine HTML-Webseite
ist und das Scrollen horizontal oder vertikal erfolgt.
8. Computerlesbares Speichermedium nach Anspruch 6, worin das computerlesbare Speichermedium
ferner Programmcode beinhaltet, der beim Verarbeiten durch den Prozessor der tragbaren
Einrichtung bewirkt, dass von der tragbaren Einrichtung das Verfahren für den Zugriff
auf ein Remote-Dokument durchgeführt wird, wobei das Verfahren ferner das Reagieren
auf einen Benutzerklick innerhalb eines darstellbaren Bereichs (13) der Einrichtung
(12) umfasst, während die zusätzlichen Teile (8, 9, 10) von der Einrichtung (12) empfangen
werden.
9. Auf einem Serversystem implementiertes Verfahren, umfassend:
Empfangen, von einer remoten tragbaren Einrichtung (12), einer Anforderung eines Dokuments;
Empfangen des Dokuments, wobei das Dokument Grafiken und Text enthält, unter Wiedergabe
zumindest eines ersten Teils des Dokuments, um ein Bild des ersten Teils (7) des Dokuments
zu erstellen, Komprimieren des Bildes des ersten Teils (7) des Dokuments und Senden
des komprimierten Bildes des ersten Teils (7) des Dokuments an die remote tragbare
Einrichtung (12);
Empfangen, von der remoten tragbaren Einrichtung (12), einer Meldung, die anzeigt,
dass ein Benutzer (3) der remoten tragbaren Einrichtung (12) das Bild des ersten Teils
des Dokuments gescrollt hat, und Anzeigen eines angescrollten Bereichs des Dokuments;
Wiedergeben zumindest eines zweiten Teils des Dokuments, um ein Bild des zweiten Teils
(8, 9, 10) des Dokuments zu erstellen, wobei der zweite Teil des Dokuments den angescrollten
Bereich enthält, Komprimieren des Bildes des zweiten Teils (8, 9, 10) des Dokuments
und Senden des komprimierten Bildes des zweiten Teils (8, 9, 10) des Dokuments an
die remote tragbare Einrichtung (12); dadurch gekennzeichnet, dass das Verfahren ferner Folgendes umfasst:
nach dem Senden des zweiten Teils des Bildes (8, 9, 10), und als Reaktion auf das
Senden der Meldung, automatisches Erstellen zusätzlicher komprimierter Teile des Bildes
(8, 9, 10), die den zweiten Teil des Bildes (8, 9,10) umgeben, und Senden der zusätzlichen
komprimierten Teile des Bildes (8, 9, 10) an den Benutzer (3).
10. Verfahren nach Anspruch 9, worin das Senden der zusätzlichen komprimierten Teile des
Bildes (8, 9, 10) einer Änderung einer zuvor bestimmten Reihenfolge des Sendens komprimierter
Teile des Bildes (8, 9, 10) an die Remote-Einrichtung (12) entspricht.
1. Procédé mis en oeuvre sur un dispositif portatif (12) pour accéder à des documents
distants, le procédé consistant à :
envoyer en provenance du dispositif (12) à un serveur distant (1) une demande de document,
le document comprenant des graphiques et du texte ;
recevoir au niveau du dispositif (12) en provenance du serveur distant (1) une première
partie (7) d'une image (5) dans un format compressé, la première partie (7) de l'image
(5) ayant été rendue au niveau du serveur distant (1) à partir du document comprenant
les graphiques et le texte, la zone de l'image (5) étant plus grande qu'une zone affichage
(13) du dispositif (12) ;
afficher la première partie (7) de l'image (5) sur le dispositif (12) ;
recevoir une entrée au niveau du dispositif (12) indiquant qu'un utilisateur (3) du
dispositif (12) est en train de faire défiler la première partie (7) de l'image (5)
;
envoyer un message au serveur distant (1) indiquant une zone cible de défilement de
l'image (5) ; et
recevoir au niveau du dispositif (12) en provenance du serveur distant (1) une seconde
partie (8, 9, 10) de l'image (5) dans un format compressé, la seconde partie (8, 9,
10) de l'image (5) ayant été rendue au niveau du serveur distant (1) à partir du document
comprenant les graphiques et le texte ; le procédé étant caractérisé en ce qu'il consiste en outre à :
après la réception de la seconde partie (8, 9, 10) de l'image (5) et en réponse à
l'envoi du message, recevoir au niveau du dispositif (12) des parties supplémentaires
(8, 9, 10) de l'image (5) qui entourent la seconde partie (8, 9, 10) de l'image (5).
2. Procédé selon la revendication 1, dans lequel le document est une page Web HTML.
3. Procédé selon la revendication 1, dans lequel le défilement est horizontal.
4. Procédé selon la revendication 1, dans lequel le défilement est vertical.
5. Procédé selon la revendication 1, consistant en outre à répondre à un clic d'utilisateur
dans une zone affichage (13) du dispositif (12) pendant que les parties supplémentaires
(8, 9, 10) sont en train d'être reçues par le dispositif (12).
6. Support de stockage lisible par ordinateur comprenant un code de programme qui, lorsqu'il
est traité par un processeur d'un dispositif portatif (12) provoque l'exécution d'un
procédé par le dispositif portable (12) afin d'accéder à un document distant, le procédé
consistant à :
envoyer en provenance du dispositif (12) à un serveur distant (1) une demande de document,
le document comprenant des graphiques et du texte ;
recevoir au niveau du dispositif (12) en provenance du serveur distant (1) une première
partie (7) d'une image (5) du document dans un format compressé, la première partie
(7) de l'image (5) ayant été rendue au niveau du serveur distant (1) à partir du document
comprenant les graphiques et le texte, la zone de l'image (5) étant plus grande qu'une
zone affichage (13) du dispositif (12) ;
afficher la première partie (7) de l'image (5) sur le dispositif (12) ;
recevoir une entrée au niveau du dispositif (12) indiquant qu'un utilisateur (3) du
dispositif (12) est en train de faire défiler la première partie (7) de l'image (5)
;
envoyer un message au serveur distant (1) indiquant une zone cible de défilement de
l'image (5) ;
recevoir au niveau du dispositif (12) en provenance du serveur distant (1) une seconde
partie (8, 9, 10) de l'image (5) dans un format compressé, la seconde partie (8, 9,
10) de l'image (5) ayant été rendue au niveau du serveur distant (1) à partir du document
comprenant les graphiques et le texte ; et
après la réception de la seconde partie (8, 9, 10) de l'image (5) et en réponse à
l'envoi du message, recevoir au niveau du dispositif (12) des parties supplémentaires
(8, 9, 10) de l'image (5) qui entourent la seconde partie (8, 9, 10) de l'image (5).
7. Support de stockage lisible par ordinateur selon la revendication 6, dans lequel le
document est une page Web HTML et le défilement est horizontal ou vertical.
8. Support de stockage lisible par ordinateur selon la revendication 6, ledit support
de stockage lisible par ordinateur comprenant autre code de programme qui, lorsqu'il
est exécuté par le processeur du dispositif portable, provoque l'exécution du procédé
par le dispositif portable afin d'accéder à un document distant, le procédé consistant
en outre à répondre à un clic d'utilisateur dans une zone affichable (13) du dispositif
(12) pendant que les parties supplémentaires (8, 9, 10) sont en train d'être reçues
par le dispositif (12).
9. Procédé mis en oeuvre sur un système serveur, consistant à :
recevoir en provenance d'un dispositif portable distant (12) une demande de document
;
recevoir le document, le document comprenant des graphiques et du texte, rendre au
moins une partie du document afin de créer une image de la première partie (7) du
document, compresser l'image de la première partie (7) du document, et envoyer l'image
compressée de la première partie (7) du document au dispositif portable distant (12)
;
recevoir en provenance du dispositif portable distant (12) un message indiquant qu'un
utilisateur (3) du dispositif portable distant (12) a fait défiler l'image de la première
partie du document, et indiquant la zone cible de défilement du document ;
rendre au moins une seconde partie du document pour créer une image de la seconde
partie (8, 9, 10) du document, la seconde partie du document comprenant la zone cible
de défilement, compresser l'image de la seconde partie (8, 9, 10) du document, et
envoyer l'image compressée de la seconde partie (8, 9, 10) du document au dispositif
portable distant (12) ; le procédé étant caractérisé en ce qu'il consiste en outre à :
après l'envoi de la seconde partie de l'image (8, 9, 10) et en réponse à l'envoi du
message, générer automatiquement des parties compressées supplémentaires de l'image
(8, 9, 10) qui entourent la seconde partie de l'image (8, 9,10), et envoyer les parties
compressées supplémentaires de l'image (8, 9, 10) à l'utilisateur (3).
10. Procédé selon la revendication 9, dans lequel l'envoi des parties compressées supplémentaires
de l'image (8, 9, 10) correspond à un changement d'un ordre d'envoi déterminé antérieurement
des parties compressées de l'image (8, 9, 10) au dispositif distant (12).